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OCR/Voting Disk on ASM questions

user8894222Dec 12 2013 — edited Jan 10 2014

I've been trying to wrap my head around this topic for the past two days and I can not find a clear answer.

What does this mean?

The number of voting files you can store in a particular Oracle ASM disk group depends upon the redundancy of the disk group.

  • External redundancy: A disk group with external redundancy can store only one voting disk
  • Normal redundancy: A disk group with normal redundancy stores three voting disks
  • High redundancy: A disk group with high redundancy stores five voting disks

That I if +ORAOCR is at high redundancy that it has 5 voting disks which are on 3 disk/devices?

Or do I need to have 5 disk/devices?

Separate, but related question. When I run ocrcheck does this tell me I only have one voting disk? And thus, I can assume I'm running external redundancy on a single device?

Status of Oracle Cluster Registry is as follows :

         Version                  :          3

         Total space (kbytes)     :     262120

         Used space (kbytes)      :       2964

         Available space (kbytes) :     259156

         ID                       : 1787678286

         Device/File Name         : +ORAOPERD_OCR

                                    Device/File integrity check succeeded

                                    Device/File not configured

                                    Device/File not configured

                                    Device/File not configured

                                    Device/File not configured

--Mark

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Locked on Feb 7 2014
Added on Dec 12 2013
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